Vishay strain gages measure up to 2,100 °F

Vishay Intertechnology Inc . released 10 strain gages in the new ZC-Series with etched Kanthal (Fe-Cr-Al alloy) foil grids in free-filament form, designed for high-temperature measurement at up to 2,100 °F [1,150 °C], particularly useful for dynamic stress analysis testing. Some gages have linear patterns with inactive temperature-compensating grids in high-resistance options, and others in a Tee-rosette pattern in a half-bridge configuration. Resistance values of 120, 200, and 350 ohms are available, depending on pattern design.

Gage lengths range from 0.063 to 0.200 in. [1.57 to 5.08 mm], and overall length ranges from 0.150 up to 0.503 in. [3.81 to 12.78 mm]. The range of grid widths extends from 0.076 to 0.280 in. [1.93 to 7.11 mm], with overall device widths ranging from 0.076 to 0.442 in. [1.93 to 11.23 mm]. ZC-Series strain gages are designed for bonding with ceramic adhesives or through use of the flame spray or similar processes. Each gage is supplied with a removable high-temperature carrier for gage handling during installation. All patterns feature 1-in. [25.4-mm] Nichrome ribbon leads spot-welded to the gage tabs for leadwire attachment. Because gages in this series cannot be self-temperature compensated, a dummy compensating gage must be used to minimize thermally induced apparent strain, or thermal output, in static measurement applications.

Production quantities of the new strain gages are available now. Vishay Micro-Measurements is a division of Vishay Measurements Group. Vishay Measurements Group is part of Vishay Intertechnology. Vishay is headquartered in Malvern, PA, has plants in 17 countries, and employs more than 25,000 people. .

—Mark Hoske, Editor-in-Chief, Control Engineering, MHoske@cfemedia.com

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